cathodic protection with sacrificial anodes

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• Cathodic protection — (CP) is a technique to control the corrosion of a metal surface by making it work as a cathode of an electrochemical cell. This is achieved by placing in contact with the metal to be protected another more easily corroded metal to act as the… …   Wikipedia

• Galvanic anode — A galvanic anode, a type of sacrificial anode, is one of the main components of a galvanic cathodic protection system used to protect metals from corrosion, by the use of a metal electrode which is itself consumed instead in an anodic oxidation… …   Wikipedia

• Corrosion — v · d · e Materials failure modes Buckling · …   Wikipedia

• Galvanic corrosion — This new manifold for water meters has replaced the old one after 4 years of use, having been connected directly to a copper pipe in the building (0.85 V of potential difference, see the point of corrosion in the bottom left). With a PVC battery… …   Wikipedia

• harbours and sea works — Introduction harbour also spelled  harbor        any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …   Universalium

• Zinc — This article is about the metallic element. For other uses, see Zinc (disambiguation). copper ← zinc → gallium ↑ Zn ↓ Cd …   Wikipedia

• Anode — An anode is an electrode through which electric current flows into a polarized electrical device. Mnemonic: ACID (Anode Current Into Device). Electrons flow in the opposite direction to the positive electric current.A widespread misconception is… …   Wikipedia

• Surface condenser — A surface condenser is a commonly used term for a water cooled shell and tube heat exchanger installed on the exhaust steam from a steam turbine in thermal power stations.[1][2][3] These condensers are heat exchangers which convert steam from its …   Wikipedia

• magnesium processing — Introduction       preparation of the ore for use in various products.       Magnesium (Mg) is a silvery white metal that is similar in appearance to aluminum but weighs one third less. With a density of only 1.738 grams per cubic centimetre, it… …   Universalium

• Cupronickel — or copper nickel or cupernickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. Cupronickel is highly resistant to corrosion in seawater, because its electrode potential is adjusted to be neutral …   Wikipedia